<template>
  <div class="login_container">
    <div class="login_box">

      <!--头像区域-->
      <div class="avatar_box">
        <img src="../assets/logo.png" alt="logo">
      </div>

      <!--登录表单区域-->
      <el-form ref="loginFormRef" :model="loginForm" :rules="loginFormRules" class="login_form">
        <!--用户名-->
        <el-form-item prop="username">
          <el-input v-model="loginForm.username" prefix-icon="iconfont icon-user"></el-input>
        </el-form-item>
        <!--密码-->
        <el-form-item prop="password">
          <el-input v-model="loginForm.password" type="password" prefix-icon="iconfont icon-3702mima"></el-input>
        </el-form-item>
        <!--按钮区域-->
        <el-form-item class="btns">
          <el-button type="primary" @click="login">登录</el-button>
          <el-button type="info" @click="resetLoginForm">重置</el-button>
        </el-form-item>
      </el-form>
    </div>
  </div>
</template>
<script>
export default {
  data () {
    return {
      // 数据绑定对象
      loginForm: {
        username: 'admin',
        password: '123456'
      },

      loginFormRules: {
        // 验证用户名是否合法
        username: [
          { required: true, message: '请输入用户名', trigger: 'blur' },
          { min: 3, max: 10, message: '长度在 3 到 10 个字符', trigger: 'blur' }
        ],
        // 验证密码是否合法
        password: [
          { required: true, message: '请输入密码', trigger: 'blur' },
          { min: 6, max: 15, message: '长度在 6 到 15 个字符', trigger: 'blur' }
        ]
      }
    }
  },
  methods: {
    // 点击重置按钮,重置登录表单
    resetLoginForm () {
      // console.log(this)
      this.$refs.loginFormRef.resetFields()
    },
    // 登录
    login () {
      this.$refs.loginFormRef.validate(async valid => {
        // if (!valid) return;
        const { data: ref } = await this.$http.post('login', this.loginForm)
        // console.log(ref)
        if (ref.meta.status !== 200) {
          return this.$message.warning('登录失败')
        }
        this.$message.success('登录成功')
        window.sessionStorage.setItem('token', ref.data.token)
        this.$router.push('/home')
        // console.log(ref)
      })
    }
  }
}

</script>
<style lang="less" scoped>
  .login_container {
    background-color: #2b4b6b;
    height: 100%;
    /*position: relative;*/
  }

  .login_box {
    width: 450px;
    height: 300px;
    background-color: white;
    border-radius: 10px;
    position: absolute;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
  }

  .avatar_box {
    width: 130px;
    height: 130px;
    padding: 15px;
    border: 1px solid lightgray;
    border-radius: 50%;
    box-shadow: 0 0 10px #ddd;
    position: absolute;
    left: 50%;
    transform: translate(-50%, -50%);
    background-color: #fff;
    img {
      width: 100%;
      height: 100%;
      border-radius: 50%;
      background-color: #eee;
    }
  }

  .btns {
    display: flex;
    justify-content: flex-end;
  }

  .login_form {
    position: absolute;
    bottom: 0;
    width: 100%;
    padding: 0 20px;
    box-sizing: border-box;
  }
</style>
